Document Type

Thesis

Degree

Master of Science

Department

Environmental Engineering

Advisor's Name

Fernando Miralles-Wilhelm

Advisor's Title

Committee Chair

Advisor's Name

Hector Fuentes

Advisor's Name

Georgio Tachiev

Keywords

modelling, MIKE SHE, mercury remediation, Oak Ridge

Date of Defense

10-26-2009

Abstract

An integrated flow and transport model using MIKE SHE/MIKE 11 software was developed to predict the flow and transport of mercury, Hg(II), under varying environmental conditions. The model analyzed the impact of remediation scenarios within the East Fork Poplar Creek watershed of the Oak Ridge Reservation with respect to downstream concentration of mercury. The numerical simulations included the entire hydrological cycle: flow in rivers, overland flow, groundwater flow in the saturated and unsaturated zones, and evapotranspiration and precipitation time series. Stochastic parameters and hydrologic conditions over a five year period of historical hydrological data were used to analyze the hydrological cycle and to determine the prevailing mercury transport mechanism within the watershed. Simulations of remediation scenarios revealed that reduction of the highly contaminated point sources, rather than general remediation of the contaminant plume, has a more direct impact on downstream mercury concentrations.

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